List of registered .CZ domains

1,222,082 registered domains in .cz zone
File size: 4.8 MB

Last update – 17 Feb 2026

Download latest .CZ domain list (4.8 MB)

Daily Domain Statistics

Date Total domains New Deleted
2025-06-23 581,246 + 53 0
2025-06-24 581,320 + 74 0
2025-06-25 581,347 + 27 0
2025-06-26 581,381 + 34 0
2025-06-27 581,401 + 20 0
2025-06-28 581,462 + 61 0
2025-06-29 581,484 + 22 0
2025-06-30 581,559 + 75 0
2025-07-01 581,619 + 60 0
2025-07-02 581,711 + 92 0
2025-07-03 581,787 + 76 0
2025-07-04 581,926 + 139 0
2025-07-05 581,955 + 29 0
2025-07-06 582,038 + 83 0
2025-07-07 582,082 + 44 0
2025-07-08 582,160 + 78 0
2025-07-09 582,193 + 33 0
2025-07-10 582,265 + 72 0
2025-07-11 582,331 + 66 0
2025-07-12 582,378 + 47 0
2025-07-13 582,438 + 60 0
2025-07-14 582,530 + 92 0
2025-07-16 582,741 + 211 0
2025-07-17 582,784 + 43 0
2025-07-18 582,890 + 106 0
2025-07-19 583,035 + 145 0
2025-07-20 583,309 + 274 0
2025-07-21 583,466 + 157 0
2025-07-22 583,723 + 257 0
2025-07-23 583,778 + 55 0
2025-07-24 584,069 + 291 0
2025-07-25 584,190 + 121 0
2025-07-26 584,414 + 224 0
2025-07-27 584,577 + 163 0
2025-07-28 845,046 + 359,691 - 99,222
2025-07-29 845,046 0 0
2025-07-30 845,046 0 0
2025-08-02 845,046 0 0
2025-08-03 845,046 0 0
2025-08-04 843,773 + 4,436 - 5,709
2025-08-05 843,773 0 0
2025-08-06 843,773 0 0
2025-08-07 843,773 0 0
2025-08-08 843,773 0 0
2025-08-09 843,773 0 0
2025-08-10 843,773 0 0
2025-08-11 843,773 0 0
2025-08-12 843,773 0 0
2025-08-13 843,773 0 0
2025-08-14 843,773 0 0
2025-08-15 843,773 0 0
2025-08-16 843,773 0 0
2025-08-17 843,773 0 0
2025-08-18 842,848 + 2,287 - 3,212
2025-08-19 842,848 0 0
2025-08-20 842,848 0 0
2025-08-21 842,848 0 0
2025-08-22 842,848 0 0
2025-08-23 842,848 0 0
2025-08-24 842,848 0 0
2025-08-25 842,848 0 0
2025-08-26 842,848 0 0
2025-08-27 842,848 0 0
2025-08-28 842,848 0 0
2025-08-29 842,848 0 0
2025-08-30 842,848 0 0
2025-08-31 842,848 0 0
2025-09-01 842,848 0 0
2025-09-02 842,848 0 0
2025-09-03 842,848 0 0
2025-09-04 841,332 + 2,445 - 3,961
2025-09-05 841,332 0 0
2025-09-06 841,332 0 0
2025-09-07 841,332 0 0
2025-09-08 841,332 0 0
2025-09-09 841,332 0 0
2025-09-10 841,332 0 0
2025-09-11 841,332 0 0
2025-09-12 841,332 0 0
2025-09-13 841,332 0 0
2025-09-14 841,332 0 0
2025-09-15 841,332 0 0
2025-09-16 841,332 0 0
2025-09-17 841,332 0 0
2025-09-18 839,126 + 2,032 - 4,238
2025-09-19 839,126 0 0
2025-09-20 839,126 0 0
2025-09-21 839,126 0 0
2025-09-22 839,126 0 0
2025-09-23 839,126 0 0
2025-09-24 839,126 0 0
2025-09-25 839,126 0 0
2025-09-26 839,126 0 0
2025-09-27 839,126 0 0
2025-09-28 839,126 0 0
2025-09-29 839,126 0 0
2025-09-30 839,126 0 0
2025-10-01 839,126 0 0
2025-10-02 839,126 0 0
2025-10-03 839,126 0 0
2025-10-04 835,530 + 3,480 - 7,076
2025-10-05 835,530 0 0
2025-10-06 835,530 0 0
2025-10-07 835,530 0 0
2025-10-08 835,530 0 0
2025-10-09 835,530 0 0
2025-10-10 835,530 0 0
2025-10-11 835,530 0 0
2025-10-12 835,530 0 0
2025-10-13 835,530 0 0
2025-10-14 835,530 0 0
2025-10-15 835,530 0 0
2025-10-16 835,530 0 0
2025-10-17 835,530 0 0
2025-10-18 829,705 + 5,727 - 11,552
2025-10-19 829,705 0 0
2025-10-20 829,705 0 0
2025-10-21 829,705 0 0
2025-10-22 829,705 0 0
2025-10-23 829,705 0 0
2025-10-24 829,705 0 0
2025-10-25 829,705 0 0
2025-10-26 829,705 0 0
2025-10-27 829,705 0 0
2025-10-28 829,705 0 0
2025-10-29 829,705 0 0
2025-10-30 829,705 0 0
2025-10-31 829,705 0 0
2025-11-01 829,705 0 0
2025-11-02 829,705 0 0
2025-11-03 829,705 0 0
2025-11-04 835,384 + 10,628 - 4,949
2025-11-05 835,384 0 0
2025-11-06 835,384 0 0
2025-11-07 835,384 0 0
2025-11-08 835,384 0 0
2025-11-09 835,384 0 0
2025-11-10 835,384 0 0
2025-11-11 835,384 0 0
2025-11-12 835,384 0 0
2025-11-13 835,384 0 0
2025-11-14 835,384 0 0
2025-11-15 835,384 0 0
2025-11-16 835,384 0 0
2025-11-17 835,384 0 0
2025-11-18 834,964 + 3,367 - 3,787
2025-11-19 834,964 0 0
2025-11-20 834,964 0 0
2025-11-21 834,964 0 0
2025-11-22 834,964 0 0
2025-11-23 834,964 0 0
2025-11-24 834,964 0 0
2025-11-25 834,964 0 0
2025-11-26 834,964 0 0
2025-11-27 834,964 0 0
2025-11-28 834,964 0 0
2025-11-29 834,964 0 0
2025-11-30 834,964 0 0
2025-12-01 834,964 0 0
2025-12-02 834,964 0 0
2025-12-03 834,964 0 0
2025-12-04 833,471 + 2,815 - 4,308
2025-12-05 833,471 0 0
2025-12-06 833,471 0 0
2025-12-07 833,471 0 0
2025-12-08 833,471 0 0
2025-12-09 833,471 0 0
2025-12-10 833,471 0 0
2025-12-11 833,471 0 0
2025-12-12 833,471 0 0
2025-12-13 833,471 0 0
2025-12-14 833,471 0 0
2025-12-15 833,471 0 0
2025-12-16 833,471 0 0
2025-12-17 833,471 0 0
2025-12-18 831,623 + 2,317 - 4,165
2025-12-19 831,623 0 0
2025-12-20 831,623 0 0
2025-12-21 1,204,832 0 0
2025-12-22 1,204,987 0 - 373,209
2025-12-23 1,205,095 0 - 373,364
2025-12-24 1,205,208 0 - 373,472
2025-12-25 1,205,328 0 - 373,585
2025-12-26 1,205,465 0 - 373,705
2025-12-27 1,205,622 0 - 373,842
2025-12-28 1,205,736 0 - 373,999
2025-12-29 1,205,959 0 - 374,113
2025-12-30 1,210,577 + 4,618 0
2025-12-31 1,211,088 + 511 0
2026-01-01 1,211,088 0 0
2026-01-02 1,211,347 + 259 0
2026-01-03 1,211,518 + 171 0
2026-01-04 1,212,800 + 1,282 0
2026-01-05 1,212,837 + 37 0
2026-01-06 1,212,837 0 0
2026-01-07 1,213,155 + 318 0
2026-01-08 1,213,337 + 182 0
2026-01-09 1,213,635 + 298 0
2026-01-10 1,213,802 + 167 0
2026-01-11 1,214,051 + 249 0
2026-01-12 1,214,175 + 124 0
2026-01-13 1,214,200 + 25 0
2026-01-14 1,214,450 + 250 0
2026-01-15 1,214,636 + 186 0
2026-01-16 1,214,836 + 200 0
2026-01-17 1,214,996 + 160 0
2026-01-18 1,215,165 + 169 0
2026-01-19 1,215,994 + 829 0
2026-01-20 1,216,077 + 83 0
2026-01-21 1,216,445 + 368 0
2026-01-22 1,216,679 + 234 0
2026-01-23 1,216,892 + 213 0
2026-01-24 1,217,037 + 145 0
2026-01-25 1,217,073 + 36 0
2026-01-26 1,217,270 + 197 0
2026-01-27 1,217,493 + 223 0
2026-01-28 1,217,863 + 370 0
2026-01-29 1,218,067 + 204 0
2026-01-30 1,218,148 + 81 0
2026-01-31 1,218,376 + 228 0
2026-02-01 1,218,591 + 215 0
2026-02-02 1,218,591 0 0
2026-02-03 1,218,906 + 315 0
2026-02-04 1,220,572 + 1,666 0
2026-02-05 1,220,614 + 42 0
2026-02-06 1,220,761 + 147 0
2026-02-07 1,220,919 + 158 0
2026-02-08 1,221,046 + 127 0
2026-02-09 1,221,166 + 120 0
2026-02-10 1,221,299 + 133 0
2026-02-11 1,221,538 + 239 0
2026-02-12 1,221,735 + 197 0
2026-02-13 1,221,833 + 98 0
2026-02-14 1,221,882 + 49 0
2026-02-15 1,221,920 + 38 0
2026-02-16 1,221,978 + 58 0
2026-02-17 1,222,082 + 104 0

Zone Details: .cz

Zone Name cz
Zone Type ccTLD
Active YES
WHOIS Server whois.nic.cz
RDAP Server https://rdap.nic.cz
Managing Organization CZ.NIC, z.s.p.o
Organization Address Milesovska 5
Prague 130 00
Czechia

Download .cz zone file via API

import axios from 'axios';
import fs from 'fs';
import { pipeline } from 'stream/promises';

const response = await axios({
  method: 'GET',
  url: 'https://allzonefiles.io/api/v1/zones/cz/dl',
  responseType: 'stream',
  headers: {
    // Replace with your API key
    'Authorization': 'Bearer allzfio_5c1572d016b846ce99ce7a177922ff21'
  }
});

await pipeline(response.data, fs.createWriteStream('cz.txt.gz'));

console.log('Download complete!');
package main

import (
    "io"
    "net/http"
    "os"
)

func main() {
    url := "https://allzonefiles.io/api/v1/zones/cz/dl"
    file, _ := os.Create("cz.txt.gz")
    defer out.Close()

    req, _ := http.NewRequest("GET", url, nil)
    // Replace with your API key
    req.Header.Set("Authorization", "Bearer allzfio_5c1572d016b846ce99ce7a177922ff21")

    resp, _ := http.DefaultClient.Do(req)
    defer resp.Body.Close()

    io.Copy(out, resp.Body)
}
import requests

url = "https://allzonefiles.io/api/v1/zones/cz/dl"
# Replace with your API key
headers = {"Authorization": "Bearer allzfio_5c1572d016b846ce99ce7a177922ff21"}

with requests.get(url, headers=headers, stream=True) as r:
    r.raise_for_status()
    with open("cz.txt.gz", "wb") as f:
        for chunk in r.iter_content(chunk_size=128*1024):
            f.write(chunk)
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

public class FileDownloader {
    public static void main(String[] args) throws Exception {
        URL url = new URL("https://allzonefiles.io/api/v1/zones/cz/dl");
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();

        connection.setRequestMethod("GET");
        // Replace with your API key
        connection.setRequestProperty("Authorization", "Bearer allzfio_5c1572d016b846ce99ce7a177922ff21");

        try (InputStream in = connection.getInputStream();
             FileOutputStream out = new FileOutputStream("cz.txt.gz")) {

            byte[] buffer = new byte[8192];
            int bytesRead;
            while ((bytesRead = in.read(buffer)) != -1) {
                out.write(buffer, 0, bytesRead);
            }
        }

        System.out.println("Download complete!");
    }
}